JP6039728B2 - Synthetic resin welded body and method for producing the same - Google Patents

Synthetic resin welded body and method for producing the same Download PDF

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Publication number
JP6039728B2
JP6039728B2 JP2015078388A JP2015078388A JP6039728B2 JP 6039728 B2 JP6039728 B2 JP 6039728B2 JP 2015078388 A JP2015078388 A JP 2015078388A JP 2015078388 A JP2015078388 A JP 2015078388A JP 6039728 B2 JP6039728 B2 JP 6039728B2
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Prior art keywords
synthetic resin
welded
laser
region
resin component
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JP2015078388A
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JP2016198886A (en
Inventor
友三 上野
友三 上野
伸弥 松井
伸弥 松井
賢大 川原
賢大 川原
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Taiho Kogyo Co Ltd
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Taiho Kogyo Co Ltd
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Priority to JP2015078388A priority Critical patent/JP6039728B2/en
Priority to EP15888541.8A priority patent/EP3281774A4/en
Priority to US15/554,457 priority patent/US20180036958A1/en
Priority to PCT/JP2015/083699 priority patent/WO2016163050A1/en
Priority to CN201580078586.6A priority patent/CN107405835A/en
Publication of JP2016198886A publication Critical patent/JP2016198886A/en
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Publication of JP6039728B2 publication Critical patent/JP6039728B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B29C65/1638—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding focusing the laser beam on the interface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2507/00—Use of elements other than metals as filler
    • B29K2507/04—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/749—Motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/023—Arrangements of lubricant conduits between oil sump and cylinder head

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

本発明は、合成樹脂部品同士が溶着されて形成される合成樹脂溶着体及びその製造方法に関する。   The present invention relates to a synthetic resin welded body formed by welding synthetic resin parts and a method for manufacturing the same.

従来、合成樹脂部品同士が溶着されて形成される合成樹脂溶着体の技術は公知となっている。例えば、特許文献１に記載の如くである。   Conventionally, a technique of a synthetic resin welded body formed by welding synthetic resin parts to each other has been publicly known. For example, as described in Patent Document 1.

特許文献１には、矩形平板形状のバッフルプレートと、下方から前記バッフルプレートに重ね合わされて油路を形成する流路形成部材と、を具備するシリンダヘッドカバーが記載されている。バッフルプレートと流路形成部材とは、互いの重ね合わせ面同士において、溶着されている。   Patent Document 1 describes a cylinder head cover that includes a rectangular flat plate-like baffle plate and a flow path forming member that overlaps the baffle plate from below to form an oil path. The baffle plate and the flow path forming member are welded to each other on the overlapping surfaces.

しかしながら、特許文献１に記載の構造では、バッフルプレート側から流路形成部材へレーザ光を照射して両者を溶着する場合、レーザの走査位置のずれやレーザの照射径が大きくなることで、油路形成部材（吸収側合成樹脂部品）の溶着すべき部分以外にもレーザが照射されることがある。そうすると、油路形成部材の本来溶融すべきでない部分が溶融してしまうという問題があった。   However, in the structure described in Patent Document 1, when laser beams are irradiated from the baffle plate side to the flow path forming member and both are welded, the displacement of the laser scanning position and the laser irradiation diameter increase, A laser may be irradiated in addition to the portion to be welded of the path forming member (absorption side synthetic resin part). If it does so, there existed a problem that the part which should not be melt | dissolved originally of an oil-path formation member will fuse | melt.

特開２００７−１２７０１４号公報JP 2007-127014 A

本発明は以上の如き状況に鑑みてなされたものであり、その解決しようとする課題は、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる合成樹脂溶着体及びその製造方法を提供するものである。   The present invention has been made in view of the above situation, and the problem to be solved is a synthetic resin welded body capable of easily melting only a portion to be welded of an absorption side synthetic resin part at the time of laser welding. And a manufacturing method thereof.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。   The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

即ち、請求項１においては、レーザ光に対して吸収性を有する吸収側合成樹脂部品と、前記吸収側合成樹脂部品と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有する透過側合成樹脂部品と、を具備し、前記透過側合成樹脂部品において、前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色されるものである。 That is, in claim 1, an absorption-side synthetic resin component that absorbs laser light and a laser-welded laser beam that is superimposed on the absorption-side synthetic resin component and transmits laser light. In the transmission side synthetic resin component , the laser transmittance of the welding region laser welded to the absorption side synthetic resin component is higher than the laser transmittance of the non-welding region which is the other region. The non-welded region is colored so as to be higher.

請求項２においては、レーザ光に対して吸収性を有する吸収側合成樹脂部品と、前記吸収側合成樹脂部品と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有する透過側合成樹脂部品と、を具備し、前記透過側合成樹脂部品において、前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成されるものである。 In Claim 2, the absorption side synthetic resin component which absorbs with respect to a laser beam, and the transmission side synthetic | combination which is laser-welded in the state overlapped with the said absorption side synthetic resin component, and has a transmittance | permeability with respect to a laser beam In the transmission-side synthetic resin component, the laser transmittance of the welding region that is laser-welded to the absorption-side synthetic resin component is higher than the laser transmittance of the non-welding region that is the other region. As described above, the weld region is formed of a material having a higher laser transmittance than the non-weld region .

請求項３においては、レーザ光に対して吸収性を有する吸収側合成樹脂部品と、前記吸収側合成樹脂部品と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有する透過側合成樹脂部品と、を具備し、前記透過側合成樹脂部品において、前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色され、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成されるものである。 According to a third aspect of the present invention, there is provided an absorption-side synthetic resin component that absorbs laser light, and a laser-welded synthetic resin component that is laser-welded in a state of being superimposed on the absorption-side synthetic resin component and that transmits laser light. In the transmission-side synthetic resin component, the laser transmittance of the welding region that is laser-welded to the absorption-side synthetic resin component is higher than the laser transmittance of the non-welding region that is the other region. As described above, the non-welded region is colored, and the weld region is formed of a material having a laser transmittance higher than that of the non-welded region .

請求項４においては、前記透過側合成樹脂部品において、前記溶着領域のレーザ透過率が前記非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域の厚みは前記非溶着領域の厚みよりも薄く形成されるものである。 According to a fourth aspect of the present invention, in the transmission-side synthetic resin part, the thickness of the welding region is larger than the thickness of the non-welding region so that the laser transmittance of the welding region is higher than the laser transmittance of the non-welding region. Is also formed thin .

請求項５においては、前記透過側合成樹脂部品は、シリンダヘッドカバーに配置されるバッフルプレートであり、前記吸収側合成樹脂部品は、前記バッフルプレート側と反対側に窪んで形成される窪み部を有し、前記バッフルプレートの一面に固定されることにより前記窪み部と前記バッフルプレートとで油路を形成する油路形成部材であるものである。   According to a fifth aspect of the present invention, the transmission-side synthetic resin component is a baffle plate disposed on a cylinder head cover, and the absorption-side synthetic resin component has a dent formed on the side opposite to the baffle plate side. And it is an oil path formation member which forms an oil path with the said hollow part and the said baffle plate by being fixed to one surface of the said baffle plate.

請求項６においては、レーザ光に対して吸収性を有する吸収側合成樹脂部品を準備する吸収側合成樹脂部品準備工程と、レーザ光に対して透過性を有する透過側合成樹脂部品を準備する透過側合成樹脂部品準備工程と、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを重ね合わせる配置工程と、前記透過側合成樹脂部品側からレーザ光を照射して前記吸収側合成樹脂部品を溶融させることにより、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを溶着して合成樹脂溶着体を得るレーザ溶着工程と、を具備し、前記透過側合成樹脂部品において、前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色されるものである。 In Claim 6, the absorption side synthetic resin component preparation process which prepares the absorption side synthetic resin component which has an absorptivity with respect to a laser beam, and the transmission which prepares the transmission side synthetic resin component which has a transmittance | permeability with respect to a laser beam Side synthetic resin component preparation step, arrangement step of superposing the absorption side synthetic resin component and the transmission side synthetic resin component, and irradiating the absorption side synthetic resin component by irradiating laser light from the transmission side synthetic resin component side A laser welding step of welding the absorption-side synthetic resin component and the transmission-side synthetic resin component to obtain a synthetic resin welded body by melting, and in the transmission-side synthetic resin component , the absorption-side synthesis The non-welded region is colored so that the laser transmittance of the welding region laser-welded to the resin component is higher than the laser transmittance of the non-welding region, which is another region .

請求項７においては、レーザ光に対して吸収性を有する吸収側合成樹脂部品を準備する吸収側合成樹脂部品準備工程と、レーザ光に対して透過性を有する透過側合成樹脂部品を準備する透過側合成樹脂部品準備工程と、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを重ね合わせる配置工程と、前記透過側合成樹脂部品側からレーザ光を照射して前記吸収側合成樹脂部品を溶融させることにより、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを溶着して合成樹脂溶着体を得るレーザ溶着工程と、を具備し、前記透過側合成樹脂部品において、前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成されるものである。 In Claim 7, the absorption side synthetic resin component preparation process which prepares the absorption side synthetic resin component which has a laser beam absorptivity, and the transmission which prepares the transmission side synthetic resin component which has a laser beam transmission property Side synthetic resin component preparation step, arrangement step of superposing the absorption side synthetic resin component and the transmission side synthetic resin component, and irradiating the absorption side synthetic resin component by irradiating laser light from the transmission side synthetic resin component side A laser welding step of welding the absorption-side synthetic resin component and the transmission-side synthetic resin component to obtain a synthetic resin welded body by melting, and in the transmission-side synthetic resin component, the absorption-side synthesis as the laser transmittance of the weld region to be a resin component and the laser welding is higher than the laser transmittance of the non-weld region which is the other area, the weld area rate than the non-weld region It is those formed by the material having high transmittance.

請求項８においては、レーザ光に対して吸収性を有する吸収側合成樹脂部品を準備する吸収側合成樹脂部品準備工程と、レーザ光に対して透過性を有する透過側合成樹脂部品を準備する透過側合成樹脂部品準備工程と、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを重ね合わせる配置工程と、前記透過側合成樹脂部品側からレーザ光を照射して前記吸収側合成樹脂部品を溶融させることにより、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを溶着して合成樹脂溶着体を得るレーザ溶着工程と、を具備し、前記透過側合成樹脂部品において、前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色され、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成されるものである。 In Claim 8, the absorption side synthetic resin component preparation process which prepares the absorption side synthetic resin component which has an absorptivity with respect to a laser beam, and the transmission which prepares the transmission side synthetic resin component which has a transmittance | permeability with respect to a laser beam Side synthetic resin component preparation step, arrangement step of superposing the absorption side synthetic resin component and the transmission side synthetic resin component, and irradiating the absorption side synthetic resin component by irradiating laser light from the transmission side synthetic resin component side A laser welding step of welding the absorption-side synthetic resin component and the transmission-side synthetic resin component to obtain a synthetic resin welded body by melting, and in the transmission-side synthetic resin component, the absorption-side synthesis as the laser transmittance of the weld region to be a resin component and the laser welding is higher than the laser transmittance of the non-weld regions of other areas, the unwelded region is colored, the weld region Wherein it is that formed by the high laser transmissivity material than the non-weld region.

請求項９においては、前記透過側合成樹脂部品において、前記溶着領域のレーザ透過率が前記非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域の厚みは前記非溶着領域の厚みよりも薄く形成されるものである。 In claim 9, in the transmission side synthetic resin part, the thickness of the welding region is larger than the thickness of the non-welding region so that the laser transmittance of the welding region is higher than the laser transmittance of the non-welding region. Is also formed thin .

請求項１０においては、前記透過側合成樹脂部品は、シリンダヘッドカバーに配置されるバッフルプレートであり、前記吸収側合成樹脂部品は、前記バッフルプレート側と反対側に窪んで形成される窪み部を有し、前記バッフルプレートの一面に固定されることにより前記窪み部と前記バッフルプレートとで油路を形成する油路形成部材であるものである。   According to a tenth aspect of the present invention, the transmission-side synthetic resin component is a baffle plate disposed on a cylinder head cover, and the absorption-side synthetic resin component has a dent formed on the side opposite to the baffle plate. And it is an oil path formation member which forms an oil path with the said hollow part and the said baffle plate by being fixed to one surface of the said baffle plate.

本発明の効果として、以下に示すような効果を奏する。   As effects of the present invention, the following effects can be obtained.

請求項１においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   According to the first aspect, it is possible to easily melt only the portion to be welded of the absorption-side synthetic resin part at the time of laser welding.

請求項２においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   According to the second aspect, it is possible to easily melt only the portion to be welded of the absorption-side synthetic resin part at the time of laser welding.

請求項３においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   In the third aspect, it is possible to easily melt only the portion to be welded of the absorption-side synthetic resin part at the time of laser welding.

請求項４においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   According to the fourth aspect of the present invention, only the portion to be welded of the absorption side synthetic resin part can be easily melted at the time of laser welding.

請求項５においては、レーザ溶着時に油路形成部材の溶着すべき部分のみを溶融させ易くすることができる。   According to the fifth aspect, it is possible to easily melt only the portion to be welded of the oil passage forming member at the time of laser welding.

請求項６においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   According to the sixth aspect of the present invention, it is possible to easily melt only the portion to be welded of the absorption side synthetic resin part at the time of laser welding.

請求項７においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   According to the seventh aspect, it is possible to easily melt only the portion to be welded of the absorption-side synthetic resin part at the time of laser welding.

請求項８においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   In the eighth aspect, it is possible to easily melt only the portion to be welded of the absorption-side synthetic resin part at the time of laser welding.

請求項９においては、レーザ溶着時に吸収側合成樹脂部品の溶着すべき部分のみを溶融させ易くすることができる。   According to the ninth aspect, it is possible to easily melt only the portion to be welded of the absorption-side synthetic resin part at the time of laser welding.

請求項１０においては、レーザ溶着時に油路形成部材の溶着すべき部分のみを溶融させ易くすることができる。   In the tenth aspect, it is possible to easily melt only the portion to be welded of the oil passage forming member at the time of laser welding.

本発明の一実施形態に係るバッフルプレート及び油路形成部材の使用状態を示す、エンジンのシリンダヘッドカバー内の断面図。Sectional drawing in the cylinder head cover of an engine which shows the use condition of the baffle plate and oil path formation member which concern on one Embodiment of this invention. バッフルプレートの底面図。The bottom view of a baffle plate. 油路形成部材の平面図。The top view of an oil path formation member. バッフルプレートと油路形成部材との溶着体の平面図。The top view of the welded body of a baffle plate and an oil path formation member. 図４のＡ−Ａ断面図。AA sectional drawing of FIG. 本発明の一実施形態に係るバッフルプレートと油路形成部材との溶着体の製造方法のフローチャート。The flowchart of the manufacturing method of the welded body of the baffle plate and oil path formation member which concern on one Embodiment of this invention. バッフルプレート及び油路形成部材のレーザ溶着前の状態を示す部分断面図。The fragmentary sectional view which shows the state before laser welding of a baffle plate and an oil-path formation member. バッフルプレート及び油路形成部材のレーザ溶着後の状態を示す部分断面図。The fragmentary sectional view which shows the state after the laser welding of a baffle plate and an oil path formation member. 本発明の第二実施形態に係るバッフルプレートと油路形成部材との溶着体の断面図。Sectional drawing of the welded body of the baffle plate and oil passage formation member which concern on 2nd embodiment of this invention. 本発明の第三実施形態に係るバッフルプレートと油路形成部材との溶着体の断面図。Sectional drawing of the welded body of the baffle plate and oil passage formation member which concern on 3rd embodiment of this invention. 本発明の第四実施形態に係るバッフルプレートと油路形成部材との溶着体の断面図。Sectional drawing of the welded body of the baffle plate and oil path formation member which concern on 4th embodiment of this invention. 本発明の第五実施形態に係るバッフルプレートと油路形成部材との溶着体の断面図。Sectional drawing of the welded body of the baffle plate and oil path formation member which concern on 5th embodiment of this invention.

以下では、図中の矢印Ｕ、矢印Ｄ、矢印Ｆ、矢印Ｂ、矢印Ｌ及び矢印Ｒで示した方向を、それぞれ上方向、下方向、前方向、後方向、左方向及び右方向と定義して説明を行う。   In the following, the directions indicated by arrow U, arrow D, arrow F, arrow B, arrow L and arrow R in the figure are defined as upward, downward, forward, backward, leftward and rightward, respectively. To explain.

まず、図１を用いて、本発明の一実施形態に係るバッフルプレート１１０及び油路形成部材１２０を具備するエンジン１の構成について説明する。   First, the configuration of the engine 1 including the baffle plate 110 and the oil passage forming member 120 according to an embodiment of the present invention will be described with reference to FIG.

本実施形態に係るエンジン１は、吸気側及び排気側にそれぞれ後述する動弁機構３０を具備している。動弁機構３０の構造は、吸気側と排気側とで略同一であるので、以下では説明の便宜上、主として排気側の構造（図１に示す左側の構造）について説明し、吸気側の構造（図１に示す右側の構造）については適宜省略するものとする。
エンジン１は、主としてシリンダヘッド１０、シリンダヘッドカバー２０、動弁機構３０、カムキャップ４０、バッフルプレート１１０及び油路形成部材１２０を具備する。 The engine 1 according to the present embodiment includes a valve operating mechanism 30 described later on each of the intake side and the exhaust side. Since the structure of the valve operating mechanism 30 is substantially the same on the intake side and the exhaust side, for convenience of explanation, the structure on the exhaust side (the structure on the left side shown in FIG. 1) will be mainly described below and the structure on the intake side ( The structure on the right side shown in FIG.
The engine 1 mainly includes a cylinder head 10, a cylinder head cover 20, a valve mechanism 30, a cam cap 40, a baffle plate 110, and an oil passage forming member 120.

シリンダヘッド１０は、シリンダブロック（不図示）と共にエンジン１の主たる構造体となるものである。シリンダヘッド１０は、前記シリンダブロックの上部に固定される。シリンダヘッド１０は、主としてシリンダヘッド側軸受部１１及びオイルギャラリー１２を具備する。   The cylinder head 10 is a main structure of the engine 1 together with a cylinder block (not shown). The cylinder head 10 is fixed to the upper part of the cylinder block. The cylinder head 10 mainly includes a cylinder head side bearing portion 11 and an oil gallery 12.

シリンダヘッド側軸受部１１は、後述する排気側カムシャフト３２Ａを下方から回転可能に支持するものである。シリンダヘッド側軸受部１１は、正面視において上方が開放された半円状の凹部となるように、シリンダヘッド１０の左部に形成される。   The cylinder head side bearing portion 11 supports an exhaust side camshaft 32A, which will be described later, so as to be rotatable from below. The cylinder head side bearing portion 11 is formed on the left portion of the cylinder head 10 so as to be a semicircular concave portion whose top is opened in a front view.

オイルギャラリー１２は、エンジン１の各部へと潤滑油を供給するための油路である。オイルギャラリー１２は、シリンダヘッド１０の左側壁を前後方向に通るように形成される。   The oil gallery 12 is an oil passage for supplying lubricating oil to each part of the engine 1. The oil gallery 12 is formed so as to pass through the left side wall of the cylinder head 10 in the front-rear direction.

シリンダヘッドカバー２０は、シリンダヘッド１０の上部を覆うものである。シリンダヘッドカバー２０は、下側が開口された碗状に形成される。シリンダヘッドカバー２０は、シリンダヘッド１０の上部に載置され、ボルト等によって適宜固定される。シリンダヘッドカバー２０の内側には、後述するバッフルプレート１１０が取り付けられ、オイルセパレータ室２１が区画される。オイルセパレータ室２１は、ブローバイガスを蓄積し、オイル落としを行った後に吸気系へと還流させることができる。   The cylinder head cover 20 covers the upper part of the cylinder head 10. The cylinder head cover 20 is formed in a bowl shape having an opening on the lower side. The cylinder head cover 20 is placed on top of the cylinder head 10 and is appropriately fixed with bolts or the like. A baffle plate 110, which will be described later, is attached to the inside of the cylinder head cover 20, and an oil separator chamber 21 is defined. The oil separator chamber 21 can accumulate blow-by gas and return it to the intake system after oil is dropped.

動弁機構３０は、エンジン１の排気ポート（不図示）を所定のタイミングで開閉させるためのものである。動弁機構３０は、主として排気バルブ３１Ａ及び排気側カムシャフト３２Ａを具備する。   The valve mechanism 30 is for opening and closing an exhaust port (not shown) of the engine 1 at a predetermined timing. The valve mechanism 30 mainly includes an exhaust valve 31A and an exhaust camshaft 32A.

排気バルブ３１Ａは、エンジン１の排気ポート（不図示）を開閉するものである。排気バルブ３１Ａは、その長手方向を略上下方向に向けて配置される。排気バルブ３１Ａの下端は、前記排気ポートまで延設される。排気バルブ３１Ａの上下中途部は、シリンダヘッド１０に摺動可能に挿通される。   The exhaust valve 31A opens and closes an exhaust port (not shown) of the engine 1. The exhaust valve 31A is arranged with its longitudinal direction substantially in the vertical direction. The lower end of the exhaust valve 31A extends to the exhaust port. The middle part of the exhaust valve 31 </ b> A is slidably inserted into the cylinder head 10.

排気側カムシャフト３２Ａは、動弁機構３０を開閉駆動させるためのものである。排気側カムシャフト３２Ａは、その長手方向を前後方向に向けた状態で、シリンダヘッド１０のシリンダヘッド側軸受部１１に載置される。排気側カムシャフト３２Ａは、カム３３を具備する。   The exhaust side camshaft 32A is for driving the valve mechanism 30 to open and close. The exhaust side camshaft 32 </ b> A is placed on the cylinder head side bearing portion 11 of the cylinder head 10 with its longitudinal direction directed in the front-rear direction. The exhaust side camshaft 32 </ b> A includes a cam 33.

カム３３は、回転中心（排気側カムシャフト３２Ａの中心）から外周までの距離が一定でない板状に形成された部分である。カム３３は、前後方向において各気筒に対応する位置に配置される。カム３３は、排気バルブ３１Ａの上方に配置される。カム３３は、排気側カムシャフト３２Ａの軸心回りに回転することにより、排気バルブ３１Ａをシリンダヘッド１０に対し上下方向に摺動させる。   The cam 33 is a portion formed in a plate shape in which the distance from the rotation center (the center of the exhaust side camshaft 32A) to the outer periphery is not constant. The cam 33 is disposed at a position corresponding to each cylinder in the front-rear direction. The cam 33 is disposed above the exhaust valve 31A. The cam 33 slides the exhaust valve 31A in the vertical direction with respect to the cylinder head 10 by rotating around the axis of the exhaust camshaft 32A.

カムキャップ４０は、シリンダヘッド１０の上部に固定され、当該シリンダヘッド１０との間で排気側カムシャフト３２Ａを保持するものである。カムキャップ４０は、長手方向を左右方向に向けた略直方体状に形成される。カムキャップ４０は、主としてカムキャップ側軸受部４１を具備する。   The cam cap 40 is fixed to the upper part of the cylinder head 10 and holds the exhaust side camshaft 32 </ b> A with the cylinder head 10. The cam cap 40 is formed in a substantially rectangular parallelepiped shape with the longitudinal direction facing the left-right direction. The cam cap 40 mainly includes a cam cap side bearing portion 41.

カムキャップ側軸受部４１は、排気側カムシャフト３２Ａを上方から回転可能に支持するものである。カムキャップ側軸受部４１は、正面視において下方が開放された半円状の凹部となるように、カムキャップ４０の左部に形成される。カムキャップ側軸受部４１は、シリンダヘッド１０のシリンダヘッド側軸受部１１と対向する位置に形成され、当該シリンダヘッド側軸受部１１と共に排気側カムシャフト３２Ａを回動可能に支持する。   The cam cap side bearing portion 41 supports the exhaust side cam shaft 32A so as to be rotatable from above. The cam cap side bearing portion 41 is formed on the left portion of the cam cap 40 so as to be a semicircular recess that is open at the bottom when viewed from the front. The cam cap side bearing portion 41 is formed at a position facing the cylinder head side bearing portion 11 of the cylinder head 10, and supports the exhaust side cam shaft 32 </ b> A together with the cylinder head side bearing portion 11 in a rotatable manner.

なお、具体的な説明は省略したが、上述の如き構成のエンジン１においては、吸気側の構造（図１に示す右側の構造）として、エンジン１の吸気ポート（不図示）を所定のタイミングで開閉させるための（吸気側の）動弁機構３０を具備する。吸気側の動弁機構３０は、図１に示すように、エンジン１の吸気ポート（不図示）を開閉する吸気バルブ３１Ｂ、及び吸気側の動弁機構３０を開閉駆動させる吸気側カムシャフト３２Ｂを具備する。   Although specific explanation is omitted, in the engine 1 having the above-described configuration, the intake port (not shown) of the engine 1 is set at a predetermined timing as the intake side structure (the right side structure shown in FIG. 1). A valve operating mechanism 30 (on the intake side) for opening and closing is provided. As shown in FIG. 1, the intake side valve mechanism 30 includes an intake valve 31B for opening and closing an intake port (not shown) of the engine 1 and an intake side camshaft 32B for opening and closing the intake side valve mechanism 30. It has.

以下では、図１から図５を用いて、バッフルプレート１１０及び油路形成部材１２０の構成について詳細に説明する。   Below, the structure of the baffle plate 110 and the oil path formation member 120 is demonstrated in detail using FIGS. 1-5.

図１、図２、図４及び図５に示すバッフルプレート１１０は、オイルセパレータ室２１を区画するための部材である。バッフルプレート１１０は、矩形板状に形成される。バッフルプレート１１０は、シリンダヘッドカバー２０の内側に取り付けられる。バッフルプレート１１０は、長手方向を前後方向とすると共に、その板面を上下方向へ向けて配置される。   The baffle plate 110 shown in FIGS. 1, 2, 4, and 5 is a member for partitioning the oil separator chamber 21. The baffle plate 110 is formed in a rectangular plate shape. The baffle plate 110 is attached to the inside of the cylinder head cover 20. The baffle plate 110 is disposed with the longitudinal direction set to the front-rear direction and the plate surface directed to the vertical direction.

バッフルプレート１１０は、レーザ光に対して透過性を有する合成樹脂から形成される。バッフルプレート１１０は、使用するレーザ光（所定の波長のレーザ光）に対して透過性を示せばよく、例えば前記レーザ光の透過率が２５％以上のものを使用することができる。具体的には、バッフルプレート１１０の材料として、ポリブチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）等のポリエステル樹脂、ポリエチレン、ポリプロピレン等のポリオレフィン樹脂、ポリアミド樹脂、塩化ビニル樹脂、フッ素樹脂等を使用することができる。   The baffle plate 110 is formed from a synthetic resin that is transparent to laser light. The baffle plate 110 has only to be transparent to the laser light to be used (laser light having a predetermined wavelength). For example, the baffle plate 110 having a transmittance of 25% or more for the laser light can be used. Specifically, polyester resin such as polybutylene terephthalate (PBT) and polyethylene terephthalate (PET), polyolefin resin such as polyethylene and polypropylene, polyamide resin, vinyl chloride resin, and fluorine resin are used as the material of the baffle plate 110. be able to.

バッフルプレート１１０は、溶着領域１１１及び非溶着領域１１２を具備する（溶着領域１１１と非溶着領域１１２とに分けられる）。溶着領域１１１及び非溶着領域１１２の詳細については、後述する。   The baffle plate 110 includes a welding region 111 and a non-welding region 112 (divided into a welding region 111 and a non-welding region 112). Details of the welding region 111 and the non-welding region 112 will be described later.

図１及び図３から図５に示す油路形成部材１２０は、所定の潤滑部へと潤滑油を供給する潤滑油の供給経路を構成するための部材である。油路形成部材１２０の平面視における外形は、前記潤滑油の供給経路の周囲を囲うような形状に形成される。油路形成部材１２０は、その中央部（前記潤滑油の供給経路に対応する部分）が下方に突出する板状に形成される（図５参照）。油路形成部材１２０は、バッフルプレート１１０の下面に固定される。   The oil passage forming member 120 shown in FIGS. 1 and 3 to 5 is a member for configuring a lubricating oil supply path for supplying lubricating oil to a predetermined lubricating portion. The outer shape of the oil passage forming member 120 in plan view is formed to surround the periphery of the lubricating oil supply route. The oil passage forming member 120 is formed in a plate shape in which a central portion (a portion corresponding to the lubricating oil supply route) protrudes downward (see FIG. 5). The oil passage forming member 120 is fixed to the lower surface of the baffle plate 110.

油路形成部材１２０は、レーザ光に対して吸収性を有する合成樹脂から形成される。油路形成部材１２０は、使用するレーザ光に対して吸収性を示せばよく、例えば前記レーザ光の透過率が５％以下のものを使用することができる。具体的には、油路形成部材１２０の材料として、上述したバッフルプレート１１０に使用される合成樹脂と同じものに、吸収性を高めるカーボンブラック等の吸収剤を混合したものを使用することができる。   The oil passage forming member 120 is formed of a synthetic resin that is absorbable with respect to laser light. The oil passage forming member 120 only needs to exhibit absorbency with respect to the laser light to be used. For example, a member having a transmittance of 5% or less for the laser light can be used. Specifically, as the material of the oil passage forming member 120, the same synthetic resin used for the baffle plate 110 described above and a mixture of an absorbent such as carbon black that enhances absorbability can be used. .

油路形成部材１２０は、窪み部１２１、導入口１２２、吐出口１２３及び溶着部１２４を具備する。   The oil passage forming member 120 includes a recess 121, an introduction port 122, a discharge port 123, and a welded portion 124.

図３及び図５に示す窪み部１２１は、前記潤滑油の供給経路に相当する部分が下方に（バッフルプレート１１０側と反対側に）窪んで形成される。窪み部１２１は、所定の潤滑部に対応する位置を終端部とするように分岐して形成される。窪み部１２１は、油路形成部材１２０がバッフルプレート１１０の下面に固定されることで、バッフルプレート１１０と油路形成部材１２０との間に油路１３０を形成する（図５参照）。換言すれば、窪み部１２１は、油路１３０の側壁及び底壁を形成する。油路１３０は、所定の油路を介して供給されたオイルギャラリー１２からの潤滑油を所定の潤滑部（例えば、カム３３）へと供給するように、図４においてハッチングで示す領域に形成される。   The recess 121 shown in FIGS. 3 and 5 is formed such that a portion corresponding to the lubricating oil supply path is recessed downward (on the opposite side to the baffle plate 110 side). The depression 121 is branched and formed so that a position corresponding to a predetermined lubrication part is a terminal part. The recessed part 121 forms the oil path 130 between the baffle plate 110 and the oil path forming member 120 by the oil path forming member 120 being fixed to the lower surface of the baffle plate 110 (see FIG. 5). In other words, the recess 121 forms the side wall and the bottom wall of the oil passage 130. The oil passage 130 is formed in a region indicated by hatching in FIG. 4 so as to supply the lubricating oil from the oil gallery 12 supplied through the predetermined oil passage to a predetermined lubricating portion (for example, the cam 33). The

図３に示す導入口１２２は、潤滑油を油路１３０へ導入する部分である。導入口１２２は、窪み部１２１の底面から下方に延びて、油路形成部材１２０を上下方向に貫通するように形成される。導入口１２２は、油路形成部材１２０の前左端部近傍に形成される。導入口１２２は、所定の油路を介してオイルギャラリー１２と連通する。   The introduction port 122 shown in FIG. 3 is a part for introducing lubricating oil into the oil passage 130. The introduction port 122 extends downward from the bottom surface of the recess 121 and is formed so as to penetrate the oil passage forming member 120 in the vertical direction. The introduction port 122 is formed near the front left end of the oil passage forming member 120. The introduction port 122 communicates with the oil gallery 12 through a predetermined oil passage.

図３に示す吐出口１２３は、油路１３０を流れる潤滑油を所定の潤滑部へ吐出する部分である。吐出口１２３は、窪み部１２１の底面から下方に延びて、油路形成部材１２０を上下方向に貫通するように形成される。吐出口１２３は、窪み部１２１（油路１３０）の各終端部（所定の潤滑部に対応する位置）にそれぞれ形成される。具体的には、吐出口１２３は、カム３３の上方に形成される。   The discharge port 123 shown in FIG. 3 is a portion that discharges the lubricating oil flowing through the oil passage 130 to a predetermined lubricating portion. The discharge port 123 extends downward from the bottom surface of the recess 121 and is formed so as to penetrate the oil passage forming member 120 in the vertical direction. The discharge port 123 is formed in each terminal part (position corresponding to a predetermined | prescribed lubrication part) of the hollow part 121 (oil path 130), respectively. Specifically, the discharge port 123 is formed above the cam 33.

図３及び図５に示す溶着部１２４は、油路形成部材１２０がバッフルプレート１１０と溶着される部分である。溶着部１２４は、油路形成部材１２０の上面に凸状に形成される。溶着部１２４は、平面視において、油路形成部材１２０の前端近傍から後端近傍にかけて、図３においてハッチングで示す領域に形成される。具体的には、溶着部１２４は、平面視において、窪み部１２１の外側に当該窪み部１２１に沿って閉じられた軌跡を描くように形成される。バッフルプレート１１０と油路形成部材１２０とがレーザ溶着されて一体となった状態において、溶着部１２４の高さ（上下方向の長さ）は、後述する凹状部１１１ａの深さと略同じに形成される（図５参照）。   3 and 5 is a portion where the oil passage forming member 120 is welded to the baffle plate 110. The welded portion 124 is formed in a convex shape on the upper surface of the oil passage forming member 120. The welded portion 124 is formed in a region indicated by hatching in FIG. 3 from the vicinity of the front end of the oil passage forming member 120 to the vicinity of the rear end in plan view. Specifically, the welded portion 124 is formed on the outer side of the recessed portion 121 so as to draw a closed locus along the recessed portion 121 in plan view. In the state where the baffle plate 110 and the oil passage forming member 120 are integrated by laser welding, the height (length in the vertical direction) of the welded portion 124 is formed to be substantially the same as the depth of the concave portion 111a described later. (See FIG. 5).

図２及び図５に示す溶着領域１１１は、バッフルプレート１１０が油路形成部材１２０の溶着部１２４と溶着される領域である。溶着領域１１１は、平面視あるいは底面視において、バッフルプレート１１０の前端近傍から後端近傍にかけて、図２においてハッチングで示す領域に形成される。具体的には、溶着領域１１１は、平面視あるいは底面視において、油路１３０の外側に当該油路１３０に沿って閉じられた軌跡を描くように形成される。溶着領域１１１の底面視における形状は、溶着部１２４の平面視における形状と略同じ形状に形成される。溶着領域１１１の幅方向における寸法（図５に示す断面拡大図においては溶着領域１１１の左右方向の寸法）は、溶着部１２４の幅方向における寸法（図５に示す断面拡大図においては溶着部１２４の左右方向の寸法）と略同じか、あるいはそれより若干大きく形成される。   A welding region 111 shown in FIGS. 2 and 5 is a region where the baffle plate 110 is welded to the welding portion 124 of the oil passage forming member 120. The welding region 111 is formed in a region indicated by hatching in FIG. 2 from the vicinity of the front end to the vicinity of the rear end of the baffle plate 110 in a plan view or a bottom view. Specifically, the welding region 111 is formed on the outside of the oil passage 130 so as to draw a closed locus along the oil passage 130 in a plan view or a bottom view. The shape of the welding region 111 in the bottom view is formed to be substantially the same shape as the shape of the welding portion 124 in the plan view. The dimension in the width direction of the welded region 111 (the dimension in the left-right direction of the welded region 111 in the enlarged sectional view shown in FIG. 5) is the dimension in the width direction of the welded part 124 (the welded part 124 in the enlarged sectional view shown in FIG. 5). The dimension in the left-right direction) is substantially the same as or slightly larger than that.

溶着領域１１１の全域に亘って凹状部１１１ａが形成される。逆に言えば、凹状部１１１ａが形成される領域が溶着領域１１１である。   A concave portion 111 a is formed over the entire welding region 111. In other words, the region where the concave portion 111 a is formed is the welding region 111.

凹状部１１１ａは、溶着領域１１１の全域に亘って凹溝状に形成される部分である。凹状部１１１ａは、バッフルプレート１１０の下面に形成される。凹状部１１１ａの底面視における形状は、溶着領域１１１の底面視における形状と同じである。凹状部１１１ａは、溶着部１２４を収容している。   The concave portion 111 a is a portion formed in a concave groove shape over the entire welding region 111. The concave portion 111 a is formed on the lower surface of the baffle plate 110. The shape of the concave portion 111a in the bottom view is the same as the shape of the welded region 111 in the bottom view. The concave portion 111a accommodates the welded portion 124.

このように、溶着領域１１１に凹状部１１１ａが形成されていることにより、溶着領域１１１は、その他の領域（後述する非溶着領域１１２）に比べて厚み（上下方向の長さ）が薄く形成される。これにより、溶着領域１１１は、非溶着領域１１２よりもレーザ透過率が高く形成される。   As described above, since the concave portion 111a is formed in the welded region 111, the welded region 111 is formed with a smaller thickness (length in the vertical direction) than other regions (non-welded region 112 described later). The As a result, the weld region 111 is formed with a higher laser transmittance than the non-weld region 112.

非溶着領域１１２は、溶着領域１１１を除くその他の領域である。非溶着領域１１２は、平面視あるいは底面視における溶着領域１１１の内側の領域（溶着領域１１１に囲まれる領域）及び溶着領域１１１の外側の領域を含む。非溶着領域１１２は、油路形成部材１２０とは溶着されない。非溶着領域１１２のうち油路形成部材１２０が配置される部分（溶着領域１１１の周囲の部分）は、油路形成部材１２０と当接する。   The non-welding area 112 is an area other than the welding area 111. The non-welding region 112 includes a region inside the welding region 111 (a region surrounded by the welding region 111) and a region outside the welding region 111 in a plan view or a bottom view. The non-welded region 112 is not welded to the oil passage forming member 120. A portion of the non-welding region 112 where the oil passage forming member 120 is disposed (a portion around the welding region 111) is in contact with the oil passage forming member 120.

このように形成されるバッフルプレート１１０及び油路形成部材１２０を上下に重ね合わせてレーザ溶着することにより、溶着体（合成樹脂溶着体）が形成される。   The welded body (synthetic resin welded body) is formed by laminating the baffle plate 110 and the oil passage forming member 120 formed in this way with each other being overlapped with each other.

以下では、図６から図８を用いて、バッフルプレート１１０と油路形成部材１２０との溶着体の製造方法について詳細に説明する。なお、本実施形態に係る製造方法の製造過程においては、バッフルプレート１１０を下方に、油路形成部材１２０を上方に配置する。   Below, the manufacturing method of the welding body of the baffle plate 110 and the oil-path formation member 120 is demonstrated in detail using FIGS. 6-8. In the manufacturing process of the manufacturing method according to the present embodiment, the baffle plate 110 is disposed below and the oil passage forming member 120 is disposed above.

本発明の一実施形態に係るバッフルプレート１１０と油路形成部材１２０との溶着体の製造方法は、バッフルプレート準備工程、油路形成部材準備工程、配置工程及びレーザ溶着工程を具備する（図６参照）。   The manufacturing method of the welded body between the baffle plate 110 and the oil passage forming member 120 according to an embodiment of the present invention includes a baffle plate preparation step, an oil passage formation member preparation step, an arrangement step, and a laser welding step (FIG. 6). reference).

バッフルプレート準備工程において、バッフルプレート１１０を準備する（ステップＳ１０１）。バッフルプレート１１０の詳細については上述の通りであるので、ここでは説明を省略する。   In the baffle plate preparation process, the baffle plate 110 is prepared (step S101). Since the details of the baffle plate 110 are as described above, description thereof is omitted here.

油路形成部材準備工程において、油路形成部材１２０を準備する（ステップＳ１０２）。油路形成部材１２０の溶着部１２４は後述するレーザ溶着工程でレーザ光により溶融されるため、溶着部１２４の高さは、凹状部１１１ａの深さよりも長く形成される。油路形成部材１２０のその他の詳細については上述の通りであるので、ここでは説明を省略する。   In the oil passage forming member preparation step, the oil passage forming member 120 is prepared (step S102). Since the welded portion 124 of the oil passage forming member 120 is melted by laser light in a laser welding process to be described later, the height of the welded portion 124 is formed longer than the depth of the concave portion 111a. Since the other details of the oil passage forming member 120 are as described above, description thereof is omitted here.

配置工程において、バッフルプレート１１０と油路形成部材１２０とを重ね合わせる（ステップＳ１０３）。このとき、バッフルプレート１１０は、凹状部１１１ａが形成される面を上方に向けて配置される。油路形成部材１２０は、溶着部１２４が形成される面を下方に向けて配置される。油路形成部材１２０は、バッフルプレート１１０の上方に配置される。油路形成部材１２０は、溶着部１２４が凹状部１１１ａに収容され、溶着部１２４の頂面（図７においては下方を向く面）が凹状部１１１ａの底面に当接するように配置される。このとき、油路形成部材１２０の下面（溶着部１２４が形成される面）は、バッフルプレート１１０の上面（凹状部１１１ａが形成される面）とは当接しておらず、両者の間には隙間が形成される（図７参照）。   In the arranging step, the baffle plate 110 and the oil passage forming member 120 are overlapped (step S103). At this time, the baffle plate 110 is disposed with the surface on which the concave portion 111a is formed facing upward. The oil passage forming member 120 is disposed with the surface on which the welded portion 124 is formed facing downward. The oil passage forming member 120 is disposed above the baffle plate 110. The oil passage forming member 120 is disposed such that the welded portion 124 is accommodated in the concave portion 111a, and the top surface (the surface facing downward in FIG. 7) of the welded portion 124 abuts the bottom surface of the concave portion 111a. At this time, the lower surface of the oil passage forming member 120 (the surface on which the welded portion 124 is formed) is not in contact with the upper surface of the baffle plate 110 (the surface on which the concave portion 111a is formed). A gap is formed (see FIG. 7).

レーザ溶着工程において、バッフルプレート１１０と油路形成部材１２０とをレーザ溶着する（ステップＳ１０４）。レーザ光をバッフルプレート１１０の下方から溶着部１２４に向けて照射する（図７に示す矢印参照）。レーザ光の光源としては、特に限定されるものではなく、半導体レーザやＹＡＧレーザ等を使用することができる。   In the laser welding process, the baffle plate 110 and the oil passage forming member 120 are laser welded (step S104). Laser light is irradiated from below the baffle plate 110 toward the welded portion 124 (see the arrow shown in FIG. 7). The light source of the laser light is not particularly limited, and a semiconductor laser, a YAG laser, or the like can be used.

バッフルプレート１１０はレーザ光に対して透過性を有する合成樹脂で形成されているため、バッフルプレート１１０の下方から照射されたレーザ光は、バッフルプレート１１０にほとんど吸収されずに当該バッフルプレート１１０を通過する。そして、前記レーザ光は、レーザ光に対して吸収性を有する合成樹脂で形成される油路形成部材１２０に吸収される。具体的には、前記レーザ光は、溶着部１２４に吸収される。   Since the baffle plate 110 is made of a synthetic resin that is transparent to the laser light, the laser light irradiated from below the baffle plate 110 passes through the baffle plate 110 without being almost absorbed by the baffle plate 110. To do. Then, the laser light is absorbed by the oil passage forming member 120 formed of a synthetic resin having absorbability with respect to the laser light. Specifically, the laser beam is absorbed by the welded portion 124.

溶着部１２４に吸収されたレーザ光のエネルギーは熱に変換される。これにより、溶着部１２４は加熱される。溶着部１２４の温度が上昇すると、当該溶着部１２４と当接する凹状部１１１ａの底面近傍も、熱伝達により加熱される。その結果、油路形成部材１２０とバッフルプレート１１０との接触部（溶着部１２４の頂面と凹状部１１１ａの底面との間）において溶融層が形成される。前記溶融層が冷えて凝固されることにより、油路形成部材１２０とバッフルプレート１１０とは溶着に至る。   The energy of the laser beam absorbed by the welded part 124 is converted into heat. Thereby, the welding part 124 is heated. When the temperature of the welded portion 124 rises, the vicinity of the bottom surface of the concave portion 111a that contacts the welded portion 124 is also heated by heat transfer. As a result, a molten layer is formed at the contact portion between the oil passage forming member 120 and the baffle plate 110 (between the top surface of the welded portion 124 and the bottom surface of the concave portion 111a). When the molten layer is cooled and solidified, the oil passage forming member 120 and the baffle plate 110 are welded.

レーザ光の照射は、溶着部１２４が溶融して、油路形成部材１２０の下面がバッフルプレート１１０の上面（非溶着領域１１２の上面）に当接するまで行う。   The laser beam irradiation is performed until the welded portion 124 is melted and the lower surface of the oil passage forming member 120 comes into contact with the upper surface of the baffle plate 110 (the upper surface of the non-welded region 112).

上述の如く、バッフルプレート１１０の溶着領域１１１が非溶着領域１１２よりも厚みが薄いことにより、溶着領域１１１のレーザ透過率は、非溶着領域１１２のレーザ透過率よりも高く形成されている。つまり、溶着領域１１１は、非溶着領域１１２よりもレーザを通し易い。よって、バッフルプレート１１０の下方から溶着部１２４へ向けて照射されたレーザ光は、溶着領域１１１を通って溶着部１２４に容易に到達することができる。したがって、溶着部１２４を溶融させるのに要する時間を短縮させることができる。   As described above, since the weld region 111 of the baffle plate 110 is thinner than the non-weld region 112, the laser transmittance of the weld region 111 is formed higher than the laser transmittance of the non-weld region 112. That is, the welding region 111 is easier to pass the laser than the non-welding region 112. Therefore, the laser beam irradiated from the lower side of the baffle plate 110 toward the welded portion 124 can easily reach the welded portion 124 through the welded region 111. Therefore, the time required to melt the welded portion 124 can be shortened.

ここで、レーザ光の走査位置のずれやレーザ光の照射径の増大などにより、レーザ光の照射位置が溶着部１２４に対して左右方向にずれた位置となることがある。このとき、溶着部１２４から外れたレーザ光は、まず非溶着領域１１２を透過しようとする。非溶着領域１１２が溶着領域１１１と比べて厚みが厚いことにより、非溶着領域１１２のレーザ透過率は、溶着領域１１１のレーザ透過率よりも高く形成されている。このため、レーザ光は非溶着領域１１２を透過し難い。よって、レーザ光が油路形成部材１２０の溶着部１２４以外の部分（溶着部１２４の周囲の部分）に照射されるのを抑制することができ、ひいては、油路形成部材１２０の溶着部１２４以外の部分が溶融するのを抑制することができる。したがって、溶着部１２４のみを溶融させ易くすることができる。   Here, the laser light irradiation position may be shifted in the left-right direction with respect to the welded portion 124 due to a shift in the scanning position of the laser light or an increase in the irradiation diameter of the laser light. At this time, the laser beam deviated from the welded portion 124 first tries to pass through the non-welded region 112. Since the non-welding region 112 is thicker than the welding region 111, the laser transmittance of the non-welding region 112 is formed higher than the laser transmittance of the welding region 111. For this reason, it is difficult for laser light to pass through the non-welded region 112. Therefore, it can suppress that laser light is irradiated to parts other than the welding part 124 (part around the welding part 124) of the oil path formation member 120, and by extension, other than the welding part 124 of the oil path formation member 120 It is possible to suppress melting of the portion. Therefore, it is possible to easily melt only the welded portion 124.

以上の如く、本実施形態に係る溶着体（合成樹脂溶着体）は、レーザ光に対して吸収性を有する油路形成部材１２０（吸収側合成樹脂部品）と、前記油路形成部材１２０と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有するバッフルプレート１１０（透過側合成樹脂部品）と、を具備し、前記バッフルプレート１１０は、前記油路形成部材１２０とレーザ溶着される溶着領域１１１のレーザ透過率がその他の領域である非溶着領域１１２のレーザ透過率よりも高くなるように形成されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 As described above, the welded body (synthetic resin welded body) according to the present embodiment is superposed on the oil passage forming member 120 (absorption side synthetic resin component) having absorbability with the laser beam and the oil passage forming member 120. A baffle plate 110 (transmission side synthetic resin part) that is laser-welded in a state of being transmitted and that is transparent to laser light, and the baffle plate 110 is laser-welded to the oil passage forming member 120. It is formed so that the laser transmittance of the welding region 111 is higher than the laser transmittance of the non-welding region 112 which is another region.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、本実施形態に係る溶着体における前記バッフルプレート１１０において、前記溶着領域１１１のレーザ透過率が前記非溶着領域１１２のレーザ透過率よりも高くなるように、前記溶着領域１１１の厚みは前記非溶着領域１１２の厚みよりも薄く形成されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 Further, in the baffle plate 110 in the welded body according to the present embodiment, the thickness of the welded region 111 is set so that the laser transmittance of the welded region 111 is higher than the laser transmittance of the non-welded region 112. It is formed thinner than the thickness of the welding region 112.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、本実施形態に係る溶着体において、前記バッフルプレート１１０は、シリンダヘッドカバー２０に配置されるバッフルプレート１１０であり、前記油路形成部材１２０は、前記バッフルプレート１１０側と反対側に窪んで形成される窪み部１２１を有し、前記バッフルプレート１１０の一面に固定されることにより前記窪み部１２１と前記バッフルプレート１１０とで油路１３０を形成する油路形成部材１２０であるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 Further, in the welded body according to the present embodiment, the baffle plate 110 is the baffle plate 110 disposed on the cylinder head cover 20, and the oil passage forming member 120 is formed to be recessed on the opposite side to the baffle plate 110 side. The oil passage forming member 120 has an indented portion 121 and is fixed to one surface of the baffle plate 110 to form an oil passage 130 with the indented portion 121 and the baffle plate 110.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、本実施形態に係る溶着体の製造方法は、レーザ光に対して吸収性を有する油路形成部材１２０（吸収側合成樹脂部品）を準備する油路形成部材準備工程（吸収側合成樹脂部品準備工程）と、レーザ光に対して透過性を有するバッフルプレート１１０（透過側合成樹脂部品）を準備するバッフルプレート準備工程（透過側合成樹脂部品準備工程）と、前記油路形成部材１２０と前記バッフルプレート１１０とを重ね合わせる配置工程と、前記バッフルプレート１１０側からレーザ光を照射して前記油路形成部材１２０を溶融させることにより、前記油路形成部材１２０と前記バッフルプレート１１０とを溶着して溶着体を得るレーザ溶着工程と、を具備し、前記バッフルプレート１１０は、前記油路形成部材１２０とレーザ溶着される溶着領域１１１のレーザ透過率がその他の領域である非溶着領域１１２のレーザ透過率よりも高くなるように形成されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 Moreover, the manufacturing method of the welding body which concerns on this embodiment prepares the oil path formation member 120 (absorption side synthetic resin component) which has absorptivity with respect to a laser beam, The oil path formation member preparation process (absorption side synthetic resin component) Preparation step), a baffle plate preparation step (transmission side synthetic resin component preparation step) for preparing a baffle plate 110 (transmission side synthetic resin component) that is transparent to laser light, the oil passage forming member 120, and the An arrangement step of overlapping the baffle plate 110 and irradiating a laser beam from the baffle plate 110 side to melt the oil passage forming member 120, thereby welding the oil passage forming member 120 and the baffle plate 110. A laser welding step of obtaining a welded body, and the baffle plate 110 is welded to the oil passage forming member 120 by laser welding. In which the laser transmittance of the region 111 is formed to be higher than the laser transmittance of the non-weld region 112 which is the other area.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、本実施形態に係る溶着体の製造方法における前記バッフルプレート１１０において、前記溶着領域１１１のレーザ透過率が前記非溶着領域１１２のレーザ透過率よりも高くなるように、前記溶着領域１１１の厚みは前記非溶着領域１１２の厚みよりも薄く形成されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 In the baffle plate 110 in the method for manufacturing a welded body according to the present embodiment, the thickness of the welded region 111 is such that the laser transmittance of the welded region 111 is higher than the laser transmittance of the non-welded region 112. Is formed thinner than the thickness of the non-welded region 112.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、本実施形態に係る溶着体の製造方法において、前記バッフルプレート１１０は、シリンダヘッドカバー２０に配置されるバッフルプレート１１０であり、前記油路形成部材１２０は、前記バッフルプレート１１０側と反対側に窪んで形成される窪み部１２１を有し、前記バッフルプレート１１０の一面に固定されることにより前記窪み部１２１と前記バッフルプレート１１０とで油路１３０を形成する油路形成部材１２０であるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 In the welded body manufacturing method according to the present embodiment, the baffle plate 110 is the baffle plate 110 disposed on the cylinder head cover 20, and the oil passage forming member 120 is disposed on the opposite side to the baffle plate 110 side. The oil passage forming member 120 has a recess portion 121 formed in a recess and is fixed to one surface of the baffle plate 110 to form an oil passage 130 with the recess portion 121 and the baffle plate 110. is there.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

以上、本発明の実施形態を説明したが、本発明は上記構成に限定されるものではなく、特許請求の範囲に記載された発明の範囲内で種々の変更が可能である。   The embodiment of the present invention has been described above, but the present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the invention described in the claims.

例えば、本実施形態は、バッフルプレート１１０と油路形成部材１２０とから形成される合成樹脂溶着体及びそれを製造する方法としたが、本発明はこれに限定されるものではなく、レーザ光に対して吸収性を有する吸収側合成樹脂部品とレーザ光に対して透過性を有する透過側合成樹脂部品とから形成されるあらゆる合成樹脂溶着体に適用することができる。   For example, in the present embodiment, the synthetic resin welded body formed from the baffle plate 110 and the oil passage forming member 120 and the method for manufacturing the same are described, but the present invention is not limited to this, and the laser beam is not limited to this. On the other hand, the present invention can be applied to any synthetic resin welded body formed from an absorption side synthetic resin part having absorbency and a transmission side synthetic resin part having permeability to laser light.

また、本実施形態においては、バッフルプレート１１０及び油路形成部材１２０が用いられるエンジンの形式について特定していないが、本実施形態に係るバッフルプレート１１０及び油路形成部材１２０は、あらゆる形式のエンジンに適用可能である。   In the present embodiment, the type of the engine in which the baffle plate 110 and the oil passage forming member 120 are used is not specified, but the baffle plate 110 and the oil passage forming member 120 according to the present embodiment are all types of engines. It is applicable to.

また、本実施形態においては、バッフルプレート１１０全体がレーザ光に対して透過性を有する合成樹脂から形成され、油路形成部材１２０全体がレーザ光に対して吸収性を有する合成樹脂から形成されるものとしたが、本発明はこれに限定されるものではない。バッフルプレート１１０及び油路形成部材１２０は、溶着に関係する部分（溶着部１２４及び凹状部１１１ａ）が前記材料から構成されていればよい。   Further, in the present embodiment, the entire baffle plate 110 is formed from a synthetic resin that is transparent to laser light, and the entire oil passage forming member 120 is formed from a synthetic resin that is absorbent to laser light. However, the present invention is not limited to this. The baffle plate 110 and the oil passage forming member 120 only have to be formed of the above-mentioned parts (the welded portion 124 and the concave portion 111a) related to welding.

また、本実施形態においては、凹状部１１１ａはバッフルプレート１１０の下面（図５参照）に形成されるものとしたが、本発明はこれに限定されるものではない。図９に示す第二実施形態の如く、凹状部１１１ａはバッフルプレート１１０の上面に形成されることも可能である。第二実施形態において、油路形成部材１２０の溶着部１２４は、凹状部１１１ａに収容されず、バッフルプレート１１０の下面に当接する。また、凹状部１１１ａは、バッフルプレート１１０の下面及び上面の両方に形成されることも可能である。   Moreover, in this embodiment, although the recessed part 111a shall be formed in the lower surface (refer FIG. 5) of the baffle plate 110, this invention is not limited to this. As in the second embodiment shown in FIG. 9, the concave portion 111 a can be formed on the upper surface of the baffle plate 110. In the second embodiment, the welded portion 124 of the oil passage forming member 120 is not accommodated in the concave portion 111 a and contacts the lower surface of the baffle plate 110. Further, the concave portion 111 a can be formed on both the lower surface and the upper surface of the baffle plate 110.

また、本実施形態においては、溶着領域１１１の厚みを非溶着領域１１２の厚みよりも薄くすることにより、溶着領域１１１のレーザ透過率が非溶着領域１１２のレーザ透過率よりも高くなるようにしたが、溶着領域１１１のレーザ透過率を非溶着領域１１２のレーザ透過率よりも高くするための構造は、これに限るものではない。以下、本発明に係る溶着領域１１１及び非溶着領域１１２の他の実施形態について説明する。   In the present embodiment, the thickness of the welding region 111 is made thinner than the thickness of the non-welding region 112 so that the laser transmittance of the welding region 111 is higher than the laser transmittance of the non-welding region 112. However, the structure for making the laser transmittance of the welding region 111 higher than the laser transmittance of the non-welding region 112 is not limited to this. Hereinafter, other embodiments of the welding region 111 and the non-welding region 112 according to the present invention will be described.

図１０に示す第三実施形態に係るバッフルプレート１４０が、第一実施形態に係るバッフルプレート１１０（図５参照）と異なる点は、凹状部１１１ａに代えて着色部１４１を具備する点である。よって以下では、バッフルプレート１４０の構成のうち第一実施形態に係るバッフルプレート１１０と同一の構成については、同一の符号を付して説明を省略する。   The baffle plate 140 according to the third embodiment shown in FIG. 10 is different from the baffle plate 110 according to the first embodiment (see FIG. 5) in that a colored portion 141 is provided instead of the concave portion 111a. Therefore, below, about the structure same as the baffle plate 110 which concerns on 1st embodiment among the structures of the baffle plate 140, the same code | symbol is attached | subjected and description is abbreviate | omitted.

着色部１４１は、非溶着領域１１２において、バッフルプレート１４０の上面に着色を施した部分である。着色部１４１は、バッフルプレート１４０の上面を着色材でコーティングすることにより形成される。具体的には、着色部１４１は、着色した塗料をバッフルプレート１４０の上面の非溶着領域１１２に塗布することで形成される。   The colored portion 141 is a portion where the upper surface of the baffle plate 140 is colored in the non-welded region 112. The coloring part 141 is formed by coating the upper surface of the baffle plate 140 with a coloring material. Specifically, the colored portion 141 is formed by applying a colored paint to the non-welded region 112 on the upper surface of the baffle plate 140.

このように、非溶着領域１１２に着色部１４１が形成されていることにより、溶着領域１１１は、非溶着領域１１２よりもレーザ透過率が高く形成される。よって、レーザ照射時に油路形成部材１２０の溶着部１２４の周囲の部分が溶融するのを抑制することができる。したがって、溶着部１２４のみを溶融させ易くすることができる。   As described above, since the colored portion 141 is formed in the non-welded region 112, the weld region 111 is formed with a laser transmittance higher than that of the non-welded region 112. Therefore, it is possible to suppress melting of the portion around the welded portion 124 of the oil passage forming member 120 during laser irradiation. Therefore, it is possible to easily melt only the welded portion 124.

図１１に示す第四実施形態に係るバッフルプレート１５０が、第三実施形態に係るバッフルプレート１４０（図１０参照）と異なる点は、着色部１４１に代えて着色部１５１を具備する点である。よって以下では、バッフルプレート１５０の構成のうち第三実施形態に係るバッフルプレート１４０と同一の構成については、同一の符号を付して説明を省略する。   The baffle plate 150 according to the fourth embodiment shown in FIG. 11 is different from the baffle plate 140 according to the third embodiment (see FIG. 10) in that a colored portion 151 is provided instead of the colored portion 141. Therefore, below, about the structure same as the baffle plate 140 which concerns on 3rd embodiment among the structures of the baffle plate 150, the same code | symbol is attached | subjected and description is abbreviate | omitted.

着色部１５１は、非溶着領域１１２において、バッフルプレート１５０の上面から下面に亘って着色を施した部分である。着色部１５１は、非溶着領域１１２の材料として予め着色材を含んだ着色された合成樹脂を用いることにより形成される。このとき、溶着領域１１１の材料としては、透明な合成樹脂が用いられる。第四実施形態に係るバッフルプレート１５０は、二色成形により形成される。   The colored portion 151 is a portion that is colored from the upper surface to the lower surface of the baffle plate 150 in the non-welded region 112. The colored portion 151 is formed by using a colored synthetic resin that contains a coloring material in advance as the material of the non-welded region 112. At this time, a transparent synthetic resin is used as the material of the welding region 111. The baffle plate 150 according to the fourth embodiment is formed by two-color molding.

このように、非溶着領域１１２に着色部１５１が形成されていることにより、溶着領域１１１は、非溶着領域１１２よりもレーザ透過率が高く形成される。よって、レーザ照射時に油路形成部材１２０の溶着部１２４の周囲の部分が溶融するのを抑制することができる。したがって、溶着部１２４のみを溶融させ易くすることができる。   As described above, since the colored portion 151 is formed in the non-welded region 112, the weld region 111 is formed with a laser transmittance higher than that of the non-welded region 112. Therefore, it is possible to suppress melting of the portion around the welded portion 124 of the oil passage forming member 120 during laser irradiation. Therefore, it is possible to easily melt only the welded portion 124.

以上の如く、第三実施形態及び第四実施形態に係る溶着体における前記バッフルプレート１４０・１５０において、前記溶着領域１１１のレーザ透過率が前記非溶着領域１１２のレーザ透過率よりも高くなるように、前記非溶着領域１１２は着色されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 As described above, in the baffle plates 140 and 150 in the welded bodies according to the third embodiment and the fourth embodiment, the laser transmittance of the welded region 111 is higher than the laser transmittance of the non-welded region 112. The non-welded region 112 is colored.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、第三実施形態及び第四実施形態に係る溶着体の製造方法における前記バッフルプレート１４０・１５０において、前記溶着領域１１１のレーザ透過率が前記非溶着領域１１２のレーザ透過率よりも高くなるように、前記非溶着領域１１２は着色されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 In the baffle plates 140 and 150 in the welded body manufacturing method according to the third embodiment and the fourth embodiment, the laser transmittance of the welded region 111 is higher than the laser transmittance of the non-welded region 112. In addition, the non-welded region 112 is colored.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

以上、本発明の第三実施形態及び第四実施形態を説明したが、本発明は上記構成に限定されるものではなく、特許請求の範囲に記載された発明の範囲内で種々の変更が可能である。   As mentioned above, although 3rd embodiment and 4th embodiment of this invention were described, this invention is not limited to the said structure, A various change is possible within the range of the invention described in the claim. It is.

例えば、第三実施形態においては、着色部１４１は、非溶着領域１１２におけるバッフルプレート１４０の上面に形成されるものとしたが、本発明はこれに限定されるものではない。着色部１４１は、非溶着領域１１２におけるバッフルプレート１４０の下面に形成されることも可能である。   For example, in the third embodiment, the colored portion 141 is formed on the upper surface of the baffle plate 140 in the non-welded region 112, but the present invention is not limited to this. The colored portion 141 may be formed on the lower surface of the baffle plate 140 in the non-welded region 112.

また、第三実施形態においては、着色部１４１は、着色した塗料を非溶着領域１１２に塗布することで形成されるものとしたが、本発明はこれに限定されるものではない。着色部１４１は、着色したフィルムを非溶着領域１１２に貼り付けることで形成されることも可能である。   In the third embodiment, the colored portion 141 is formed by applying a colored paint to the non-welded region 112, but the present invention is not limited to this. The colored portion 141 can also be formed by sticking a colored film to the non-welded region 112.

また、第三実施形態及び第四実施形態においては、着色部１４１・１５１は、非溶着領域１１２のみに着色が施されることで形成されるものとしたが、本発明はこれに限定されるものではない。着色部１４１・１５１は、溶着領域１１１にレーザ光を透過し易い色を着色し、非溶着領域１１２に溶着領域１１１よりもレーザ光を透過し難い（吸収し易い）色を着色することにより形成されてもよい。あるいは、着色部１４１・１５１は、溶着領域１１１に薄い色を着色し（着色材を少なく含有させ）、非溶着領域１１２に濃い色を着色する（着色材を多く含有させる）ことにより形成されてもよい。   In the third embodiment and the fourth embodiment, the colored portions 141 and 151 are formed by coloring only the non-welded region 112, but the present invention is limited to this. It is not a thing. The colored portions 141 and 151 are formed by coloring the welding region 111 with a color that easily transmits laser light, and coloring the non-welding region 112 with a color that is less likely to transmit laser light (easier to absorb) than the welding region 111. May be. Alternatively, the colored portions 141 and 151 are formed by coloring the welding region 111 with a light color (containing a small amount of coloring material) and coloring the non-welding region 112 with a dark color (containing a large amount of coloring material). Also good.

また、第四実施形態においては、バッフルプレート１５０は二色成形により形成されるものとしたが、本発明はこれに限定されるものではない。バッフルプレート１５０は、溶着領域１１１と非溶着領域１１２を別々に成形し、後で両者を接合することにより形成されることも可能である。   In the fourth embodiment, the baffle plate 150 is formed by two-color molding, but the present invention is not limited to this. The baffle plate 150 can also be formed by separately forming the welding region 111 and the non-welding region 112 and then joining them together.

図１２に示す第五実施形態に係るバッフルプレート１６０が、第四実施形態に係るバッフルプレート１５０（図１１参照）と異なる点は、着色部１５１に代えて低透過率材料部１６１を具備する点である。よって以下では、バッフルプレート１６０の構成のうち第五実施形態に係るバッフルプレート１５０と同一の構成については、同一の符号を付して説明を省略する。   The baffle plate 160 according to the fifth embodiment shown in FIG. 12 is different from the baffle plate 150 according to the fourth embodiment (see FIG. 11) in that a low transmittance material portion 161 is provided instead of the coloring portion 151. It is. Therefore, below, about the structure same as the baffle plate 150 which concerns on 5th embodiment among the structures of the baffle plate 160, the same code | symbol is attached | subjected and description is abbreviate | omitted.

低透過率材料部１６１は、非溶着領域１１２においてバッフルプレート１６０の上面から下面に亘って形成されると共に、溶着領域１１１の材料よりもレーザ透過率の低い材料で形成される部分である。低透過率材料部１６１の材料としては、溶着領域１１１に使用される合成樹脂よりも、レーザ透過率の低い性質を有する合成樹脂が用いられる。低透過率材料部１６１は、二色成形により形成される。   The low transmittance material portion 161 is a portion that is formed from the upper surface to the lower surface of the baffle plate 160 in the non-welding region 112 and is made of a material having a laser transmittance lower than that of the material of the welding region 111. As a material of the low transmittance material portion 161, a synthetic resin having a property of lower laser transmittance than the synthetic resin used for the welding region 111 is used. The low transmittance material portion 161 is formed by two-color molding.

このように、非溶着領域１１２に低透過率材料部１６１が形成されていることにより、溶着領域１１１は、非溶着領域１１２よりもレーザ透過率が高く形成される。よって、レーザ照射時に油路形成部材１２０の溶着部１２４の周囲の部分が溶融するのを抑制することができる。したがって、溶着部１２４のみを溶融させ易くすることができる。   As described above, the low transmittance material portion 161 is formed in the non-welded region 112, so that the weld region 111 is formed with a laser transmittance higher than that of the non-welded region 112. Therefore, it is possible to suppress melting of the portion around the welded portion 124 of the oil passage forming member 120 during laser irradiation. Therefore, it is possible to easily melt only the welded portion 124.

以上の如く、第五実施形態に係る溶着体における前記バッフルプレート１６０において、前記溶着領域１１１のレーザ透過率が前記非溶着領域１１２のレーザ透過率よりも高くなるように、前記溶着領域１１１は前記非溶着領域１１２よりもレーザ透過率の高い材料で形成されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 As described above, in the baffle plate 160 in the welded body according to the fifth embodiment, the weld region 111 is formed so that the laser transmittance of the weld region 111 is higher than the laser transmittance of the non-weld region 112. It is formed of a material having a laser transmittance higher than that of the non-welded region 112.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

また、第五実施形態に係る溶着体の製造方法における前記バッフルプレート１６０において、前記溶着領域１１１のレーザ透過率が前記非溶着領域１１２のレーザ透過率よりも高くなるように、前記溶着領域１１１は前記非溶着領域１１２よりもレーザ透過率の高い材料で形成されるものである。
このように構成することにより、レーザ溶着時に油路形成部材１２０の溶着部１２４（溶着すべき部分）のみを溶融させ易くすることができる。 Further, in the baffle plate 160 in the method for manufacturing a welded body according to the fifth embodiment, the weld region 111 is formed so that the laser transmittance of the weld region 111 is higher than the laser transmittance of the non-weld region 112. It is made of a material having a laser transmittance higher than that of the non-welded region 112.
By comprising in this way, only the welding part 124 (part which should be welded) of the oil path formation member 120 can be made easy to melt | dissolve at the time of laser welding.

以上、本発明の第五実施形態を説明したが、本発明は上記構成に限定されるものではなく、特許請求の範囲に記載された発明の範囲内で種々の変更が可能である。   Although the fifth embodiment of the present invention has been described above, the present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the invention described in the claims.

例えば、第五実施形態においては、バッフルプレート１６０は二色成形により形成されるものとしたが、本発明はこれに限定されるものではない。バッフルプレート１６０は、溶着領域１１１と非溶着領域１１２を別々に成形し、後で両者を接合することにより形成されることも可能である。   For example, in the fifth embodiment, the baffle plate 160 is formed by two-color molding, but the present invention is not limited to this. The baffle plate 160 can also be formed by separately forming the welded region 111 and the non-welded region 112 and later joining them together.

１１０ バッフルプレート（透過側合成樹脂部品）
１１１ 溶着領域
１１１ａ 凹状部
１１２ 非溶着領域
１２０ 油路形成部材（吸収側合成樹脂部品）
１２１ 窪み部
１３０ 油路 110 Baffle plate (transmission side synthetic resin part)
111 Welding region 111a Concave portion 112 Non-welding region 120 Oil passage forming member (absorption side synthetic resin part)
121 Indentation part 130 Oil passage

Claims (10)

レーザ光に対して吸収性を有する吸収側合成樹脂部品と、
前記吸収側合成樹脂部品と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有する透過側合成樹脂部品と、
を具備し、
前記透過側合成樹脂部品において、
前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色される、
合成樹脂溶着体。 An absorption-side synthetic resin component having absorption for laser light;
A laser-welded synthetic resin component that is laser-welded in a state of being superimposed on the absorption-side synthetic resin component, and has transparency to laser light;
Comprising
In the transmission side synthetic resin component,
The non-welded region is colored so that the laser transmittance of the weld region to be laser-welded with the absorption-side synthetic resin component is higher than the laser transmittance of the non-weld region, which is another region ,
Synthetic resin welded body. レーザ光に対して吸収性を有する吸収側合成樹脂部品と、
前記吸収側合成樹脂部品と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有する透過側合成樹脂部品と、
を具備し、
前記透過側合成樹脂部品において、
前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成される、
合成樹脂溶着体。 An absorption-side synthetic resin component having absorption for laser light;
A laser-welded synthetic resin component that is laser-welded in a state of being superimposed on the absorption-side synthetic resin component, and has transparency to laser light;
Comprising
In the transmission side synthetic resin part,
The welded region has a laser transmittance higher than that of the non-welded region so that the laser transmittance of the welded region laser welded to the absorption-side synthetic resin component is higher than the laser transmittance of the non-welded region which is another region. Formed of high material ,
Synthetic resin weld body. レーザ光に対して吸収性を有する吸収側合成樹脂部品と、
前記吸収側合成樹脂部品と重ね合わされた状態でレーザ溶着され、レーザ光に対して透過性を有する透過側合成樹脂部品と、
を具備し、
前記透過側合成樹脂部品において、
前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色され、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成される、
合成樹脂溶着体。 An absorption-side synthetic resin component having absorption for laser light;
A laser-welded synthetic resin component that is laser-welded in a state of being superimposed on the absorption-side synthetic resin component, and has transparency to laser light;
Comprising
In the transmission side synthetic resin part,
The non-welding region is colored so that the laser transmittance of the welding region laser-welded to the absorption-side synthetic resin component is higher than the laser transmittance of the non-welding region, which is another region, and the welding region is Formed of a material having a higher laser transmittance than the non-welded region ,
Synthetic resin weld body. 前記透過側合成樹脂部品において、
前記溶着領域のレーザ透過率が前記非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域の厚みは前記非溶着領域の厚みよりも薄く形成される、
請求項１から請求項３までのいずれか一項に記載の合成樹脂溶着体。 In the transmission side synthetic resin part,
The thickness of the welded region is formed to be thinner than the thickness of the non-welded region so that the laser transmittance of the welded region is higher than the laser transmittance of the non-welded region .
The synthetic resin welded body according to any one of claims 1 to 3. 前記透過側合成樹脂部品は、シリンダヘッドカバーに配置されるバッフルプレートであり、
前記吸収側合成樹脂部品は、前記バッフルプレート側と反対側に窪んで形成される窪み部を有し、前記バッフルプレートの一面に固定されることにより前記窪み部と前記バッフルプレートとで油路を形成する油路形成部材である、
請求項１から請求項４までのいずれか一項に記載の合成樹脂溶着体。 The transmission side synthetic resin component is a baffle plate disposed on a cylinder head cover,
The absorption-side synthetic resin component has a recess formed to be recessed on the side opposite to the baffle plate side, and is fixed to one surface of the baffle plate so that an oil path is formed between the recess and the baffle plate. An oil passage forming member to be formed,
The synthetic resin welded body according to any one of claims 1 to 4. レーザ光に対して吸収性を有する吸収側合成樹脂部品を準備する吸収側合成樹脂部品準備工程と、
レーザ光に対して透過性を有する透過側合成樹脂部品を準備する透過側合成樹脂部品準備工程と、
前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを重ね合わせる配置工程と、
前記透過側合成樹脂部品側からレーザ光を照射して前記吸収側合成樹脂部品を溶融させることにより、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを溶着して合成樹脂溶着体を得るレーザ溶着工程と、
を具備し、
前記透過側合成樹脂部品において、
前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色される、
合成樹脂溶着体の製造方法。 An absorption-side synthetic resin component preparation step of preparing an absorption-side synthetic resin component having absorbency with respect to laser light;
A transmission side synthetic resin part preparation step of preparing a transmission side synthetic resin part having transparency to the laser beam;
An arrangement step of superposing the absorption side synthetic resin component and the transmission side synthetic resin component;
By irradiating laser light from the transmission side synthetic resin component side to melt the absorption side synthetic resin component, the absorption side synthetic resin component and the transmission side synthetic resin component are welded to obtain a synthetic resin welded body. Laser welding process;
Comprising
In the transmission side synthetic resin component,
The non-welded region is colored so that the laser transmittance of the weld region to be laser-welded with the absorption-side synthetic resin component is higher than the laser transmittance of the non-weld region, which is another region ,
A method for producing a synthetic resin welded body. レーザ光に対して吸収性を有する吸収側合成樹脂部品を準備する吸収側合成樹脂部品準備工程と、
レーザ光に対して透過性を有する透過側合成樹脂部品を準備する透過側合成樹脂部品準備工程と、
前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを重ね合わせる配置工程と、
前記透過側合成樹脂部品側からレーザ光を照射して前記吸収側合成樹脂部品を溶融させることにより、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを溶着して合成樹脂溶着体を得るレーザ溶着工程と、
を具備し、
前記透過側合成樹脂部品において、
前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成される、
合成樹脂溶着体の製造方法。 An absorption-side synthetic resin component preparation step of preparing an absorption-side synthetic resin component having absorbency with respect to laser light;
A transmission side synthetic resin part preparation step of preparing a transmission side synthetic resin part having transparency to the laser beam;
An arrangement step of superposing the absorption side synthetic resin component and the transmission side synthetic resin component;
By irradiating laser light from the transmission side synthetic resin component side to melt the absorption side synthetic resin component, the absorption side synthetic resin component and the transmission side synthetic resin component are welded to obtain a synthetic resin welded body. Laser welding process;
Comprising
In the transmission side synthetic resin part,
The welded region has a laser transmittance higher than that of the non-welded region so that the laser transmittance of the welded region laser welded to the absorption-side synthetic resin component is higher than the laser transmittance of the non-welded region which is another region. Formed of high material ,
Method for manufacturing a synthetic resin-welded article. レーザ光に対して吸収性を有する吸収側合成樹脂部品を準備する吸収側合成樹脂部品準備工程と、
レーザ光に対して透過性を有する透過側合成樹脂部品を準備する透過側合成樹脂部品準備工程と、
前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを重ね合わせる配置工程と、
前記透過側合成樹脂部品側からレーザ光を照射して前記吸収側合成樹脂部品を溶融させることにより、前記吸収側合成樹脂部品と前記透過側合成樹脂部品とを溶着して合成樹脂溶着体を得るレーザ溶着工程と、
を具備し、
前記透過側合成樹脂部品において、
前記吸収側合成樹脂部品とレーザ溶着される溶着領域のレーザ透過率がその他の領域である非溶着領域のレーザ透過率よりも高くなるように、前記非溶着領域は着色され、前記溶着領域は前記非溶着領域よりもレーザ透過率の高い材料で形成される、
合成樹脂溶着体の製造方法。 An absorption-side synthetic resin component preparation step of preparing an absorption-side synthetic resin component having absorbency with respect to laser light;
A transmission side synthetic resin part preparation step of preparing a transmission side synthetic resin part having transparency to the laser beam;
An arrangement step of superposing the absorption side synthetic resin component and the transmission side synthetic resin component;
By irradiating laser light from the transmission side synthetic resin component side to melt the absorption side synthetic resin component, the absorption side synthetic resin component and the transmission side synthetic resin component are welded to obtain a synthetic resin welded body. Laser welding process;
Comprising
In the transmission side synthetic resin part,
The non-welding region is colored so that the laser transmittance of the welding region laser-welded to the absorption-side synthetic resin component is higher than the laser transmittance of the non-welding region, which is another region, and the welding region is Formed of a material having a higher laser transmittance than the non-welded region ,
Method for manufacturing a synthetic resin-welded article. 前記透過側合成樹脂部品において、
前記溶着領域のレーザ透過率が前記非溶着領域のレーザ透過率よりも高くなるように、前記溶着領域の厚みは前記非溶着領域の厚みよりも薄く形成される、
請求項６から請求項８までのいずれか一項に記載の合成樹脂溶着体の製造方法。 In the transmission side synthetic resin part,
The thickness of the welded region is formed to be thinner than the thickness of the non-welded region so that the laser transmittance of the welded region is higher than the laser transmittance of the non-welded region .
The method for producing a synthetic resin welded body according to any one of claims 6 to 8. 前記透過側合成樹脂部品は、シリンダヘッドカバーに配置されるバッフルプレートであり、
前記吸収側合成樹脂部品は、前記バッフルプレート側と反対側に窪んで形成される窪み部を有し、前記バッフルプレートの一面に固定されることにより前記窪み部と前記バッフルプレートとで油路を形成する油路形成部材である、
請求項６から請求項９までのいずれか一項に記載の合成樹脂溶着体の製造方法。 The transmission side synthetic resin component is a baffle plate disposed on a cylinder head cover,
The absorption-side synthetic resin component has a recess formed to be recessed on the side opposite to the baffle plate side, and is fixed to one surface of the baffle plate so that an oil path is formed between the recess and the baffle plate. An oil passage forming member to be formed,
The method for producing a synthetic resin welded body according to any one of claims 6 to 9.
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